Joachim Quantz

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In the last 15 years Description Logics (DL) have become one of the major paradigms in Knowledge Representation. Whereas in the beginning it was hoped that DL provide representation formalisms which allowed efficient computation, at least three trends in recent years caused efficiency problems for DL systems and applications: a trend towards expressive(More)
This report describes the Description Logic (DL) system FLEX. It consists of a brief overview over the field of Description Logics in general and the characteristics of FLEX, a tutorial for the FLEX system, a brief description of the inference algorithms, and an appendix containing a syntax overview, the formal semantics, a reference manual, and an(More)
This report describes the domain model used in the German Machine Translation project VERBMOBIL. In order make the design principles underlying the modeling explicit, we begin with a brief sketch of the VERBMOBIL demonstrator architecture from the perspective of the domain model. We then present some rather general considerations on the nature of domain(More)
Autonomy, adaptability, scalability, and flexible communications are all attributes of agents and multi-agent systems which suggest that they may offer timely solutions for dealing with the growing complexity of the tasks of traffic control and resource management in telecommunications networks. However, if agent-based solutions to network management(More)
The resolution of ambiguities is one of the central problems for Machine Translation. In this paper we propose a knowledge-based approach to disambiguation which uses Description Logics (dl) as representation formalism. We present the process of anaphora resolution implemented in the Machine Translation systemfast and show how thedl systemback is used to(More)